Deterministic 2D affine keycap-unit (19.05 mm / 18x17 mm Choc) rigid transform parser + polygon Minkowski sum case-bezel & acoustic relief kerf offset engine (.dxf, .svg, .json, .step) built for Cherry MX, Kailh Choc, KBDFans, LaserBoost — zero-upload ephemeral Wasm RAM execution.
Running ephemeral Wasm verification…